Patents by Inventor Kwai L. Luk

Kwai L. Luk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5084308
    Abstract: Slits extend transversely between longitudinal edge portions of a PVC sheet to define two interdigitating rows of triangular regions, each row having its apexes integral with one edge portion and its bases integral with the other edge portion. Crease lines extend along the respective triangular regions. When the apexes are separated, two pieces of bladed sheet material are formed. The blades resemble grass or leaves.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: January 28, 1992
    Assignee: Fung Yue Industrial Company Limited
    Inventor: Kwai L. Luk